Used Aircraft Market: This chart displays each model's quarterly value in relationship to its average equipped price at the inception of the aircraft. The study begins in the spring quarter of 1994 and includes the Jet, Turboprop, Multi, Piston and Helicopter. For all charts, the red number indicates the first reporting date after 9-11.

Jet: The jet chart depicts the average price (in thousands) of the six 1990s jets listed in the box.

Turboprop: The turboprop chart depicts the average price (in thousands) of a 1985, 1986 and four 1990 turboprops listed in the box.

Multi: The multi chart depicts the average price (in thousands) of the six multi models listed in the box. Each model’s year will precede the name of the aircraft.

Piston: The piston chart depicts the average price (in thousands) of the 10 pistons listed in the box. Each model’s year will precede the name of the aircraft.

Helicopter: The helicopter chart depicts the average price (in thousands) of the six helicopters listed in the box. Each model’s year will precede the name of the aircraft.

NASDAQ: This ratio scale chart depicts the change for the NASDAQ daily average from quarter to quarter beginning at the end of the first quarter of 1992. Each data point represents the closing daily average on the last trading day of each quarter. This study originates in the first quarter of 1971.

Aircraft on Registry: The Aircraft on Registry chart depicts the number of aircraft reported in Aircraft Bluebook that are listed on FAA records and considered to be in the U.S. inventory.

U.S. Real Gross Domestic Product (criteria updated Aug. 27, 2010): This graph represents real gross domestic product measured by the U.S. Bureau of Economic Analysis. Each data point represents the BEA's final figure or latest estimate of the quarter-to-quarter seasonally adjusted annual rates of change in real GDP "based on chained 2005 dollars." The study begins with the second quarter in 2005.

Single/Multi: The blue line in the Single/Multi chart depicts change-of-ownership data for singles. The black line represents multis.

Jet/Turboprop/Heli: The black line in the Jet/Turboprop/Heli chart represents change-of-ownership information for jets. The blue line depicts turboprops, and the gray line represents helicopters.

Total Market: Depicts change-of-ownership data for all aircraft included in the Aircraft Bluebook. The numbers are from the FAA Registry. Gliders, homebuilts, airliners and other aircraft not found in the Bluebook are not included in this study.